Mercury GO BOLDLY 25 EFI Operation, Maintenance And Installation Manual page 112

1. Install the fuel filter O‑ring seal into the fuel filter. Verify the O‑ring does
not have any folds or kinks.
2. Lubricate the O‑ring with clean engine oil.
3. Push the fuel filter element onto the filter housing. Verify the filter is
completely installed by pushing on the filter in the locations shown in the
following illustration.
4. Install the sight bowl O‑ring seal onto the sight bowl and place the red ring
into the sight bowl.
5. Install the sight bowl onto the filter housing hand‑tight.
MAINTENANCE
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